*{
    margin: 0;
    padding: 0;
}
body,
html{
    width: 100%;
    height:100%;
    display: flex;
    flex-direction: column;
    margin: 0;
    padding: 0;
    overflow:hidden;
}
header,footer{
    width: 100%;
    height: 44px;
    
}
header{
    display: flex !important;
    justify-content: center;
    background: #0cc440;
    position: relative;
}
header i{
    position: absolute;
    left: 5%;
    top: 50%;
 transform: translateY(-50%);
    color: white;
    font-size: 24px !important;
}
header button{
    background: #3ecf66;
    display: inline-block;
    height: 24px;
    width: 60px;
    color: #99f2ae;
    align-self: center;
    border: 0;
}
header button a{
    display: block;
}
header .active{
    color: #fffef9;
    background: #63d985;
}
header button:nth-child(2){
    border-radius: 28px 0 0 28px;
}
header button:nth-child(3){
    border-radius: 0 28px 28px 0;
}
main{
    flex: 1;
    overflow: auto;
}
footer{
    display: flex !important;
    justify-content: space-between;
    border-top: 1px solid #ccd6cd !important;
}
footer p{
    height: 100%;
    flex: 1;
    box-sizing: border-box;
    font-size: 12px;
    display: flex;
    justify-content: center;
}
footer p:nth-child(3) a{ 
    position: absolute;
    background: #fff;
    bottom: 0;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    line-height: 60px;
    border: 1px solid #e0e2df;
}
footer i{
    font-size: 22px;
    color: #d6d6d6;
}
footer a{
    color: #d6d6d6;
}
footer p:nth-child(3) i {
   font-size: 34px !important;
}

footer .active a,
footer .active i{
    color: #0fc441 !important; 
}
footer p a{
    text-decoration: none;
    display: block;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}